/
UnitDrawer.cpp
1950 lines (1441 loc) · 57.9 KB
/
UnitDrawer.cpp
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/* This file is part of the Spring engine (GPL v2 or later), see LICENSE.html */
#include "UnitDrawer.h"
#include "UnitDrawerState.hpp"
#include "Game/Camera.h"
#include "Game/CameraHandler.h"
#include "Game/GameHelper.h"
#include "Game/GameSetup.h"
#include "Game/GlobalUnsynced.h"
#include "Game/Players/Player.h"
#include "Game/UI/MiniMap.h"
#include "Map/Ground.h"
#include "Map/ReadMap.h"
#include "Rendering/Env/ISky.h"
#include "Rendering/Env/IWater.h"
#include "Rendering/Env/CubeMapHandler.h"
#include "Rendering/FarTextureHandler.h"
#include "Rendering/GL/glExtra.h"
#include "Rendering/GL/RenderDataBuffer.hpp"
#include "Rendering/GL/VertexArray.h"
#include "Rendering/Env/IGroundDecalDrawer.h"
#include "Rendering/Colors.h"
#include "Rendering/IconHandler.h"
#include "Rendering/LuaObjectDrawer.h"
#include "Rendering/ShadowHandler.h"
#include "Rendering/Shaders/Shader.h"
#include "Rendering/Textures/Bitmap.h"
#include "Rendering/Textures/3DOTextureHandler.h"
#include "Rendering/Textures/S3OTextureHandler.h"
#include "Sim/Features/Feature.h"
#include "Sim/Misc/LosHandler.h"
#include "Sim/Misc/TeamHandler.h"
#include "Sim/Projectiles/ExplosionGenerator.h"
#include "Sim/Units/BuildInfo.h"
#include "Sim/Units/UnitDef.h"
#include "Sim/Units/UnitDefHandler.h"
#include "Sim/Units/UnitHandler.h"
#include "Sim/Units/Unit.h"
#include "System/Config/ConfigHandler.h"
#include "System/FileSystem/FileHandler.h"
#include "System/ContainerUtil.h"
#include "System/EventHandler.h"
#include "System/MemPoolTypes.h"
#include "System/myMath.h"
CONFIG(int, UnitLodDist).defaultValue(1000).headlessValue(0);
CONFIG(int, UnitIconDist).defaultValue(200).headlessValue(0);
CONFIG(float, UnitTransparency).defaultValue(0.7f);
CONFIG(int, MaxDynamicModelLights)
.defaultValue(1)
.minimumValue(0);
CUnitDrawer* unitDrawer = nullptr;
// can not be a CUnitDrawer; destruction in global
// scope might happen after ~EventHandler which is
// referenced by ~EventClient
static uint8_t unitDrawerMem[sizeof(CUnitDrawer)];
static FixedDynMemPool<sizeof(GhostSolidObject), MAX_UNITS / 1000, MAX_UNITS / 32> ghostMemPool;
static void LoadUnitExplosionGenerators() {
using F = decltype(&UnitDef::AddModelExpGenID);
using T = decltype(UnitDef::modelCEGTags);
const auto LoadGenerators = [](UnitDef* ud, const F addExplGenID, const T& explGenTags, const char* explGenPrefix) {
for (const auto& explGenTag: explGenTags) {
if (explGenTag[0] == 0)
break;
// build a contiguous range of valid ID's
(ud->*addExplGenID)(explGenHandler.LoadGeneratorID(explGenTag, explGenPrefix));
}
};
for (unsigned int i = 0, n = unitDefHandler->NumUnitDefs(); i < n; i++) {
UnitDef* ud = const_cast<UnitDef*>(unitDefHandler->GetUnitDefByID(i + 1));
// piece- and crash-generators can only be custom so the prefix is not required to be given game-side
LoadGenerators(ud, &UnitDef::AddModelExpGenID, ud->modelCEGTags, "");
LoadGenerators(ud, &UnitDef::AddPieceExpGenID, ud->pieceCEGTags, CEG_PREFIX_STRING);
LoadGenerators(ud, &UnitDef::AddCrashExpGenID, ud->crashCEGTags, CEG_PREFIX_STRING);
}
}
static const void BindOpaqueTex(const CS3OTextureHandler::S3OTexMat* textureMat) {
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, textureMat->tex2);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, textureMat->tex1);
}
static const void BindOpaqueTexAtlas(const CS3OTextureHandler::S3OTexMat*) {
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, textureHandler3DO.GetAtlasTex2ID());
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, textureHandler3DO.GetAtlasTex1ID());
}
static const void BindOpaqueTexDummy(const CS3OTextureHandler::S3OTexMat*) {}
static const void BindShadowTex(const CS3OTextureHandler::S3OTexMat* textureMat) {
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, textureMat->tex2);
}
static const void KillShadowTex(const CS3OTextureHandler::S3OTexMat*) {
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE0);
}
static const void BindShadowTexAtlas(const CS3OTextureHandler::S3OTexMat*) {
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, textureHandler3DO.GetAtlasTex2ID());
}
static const void KillShadowTexAtlas(const CS3OTextureHandler::S3OTexMat*) {
glBindTexture(GL_TEXTURE_2D, 0);
glActiveTexture(GL_TEXTURE0);
}
static const void PushRenderState3DO() {
BindOpaqueTexAtlas(nullptr);
glAttribStatePtr->PushPolygonBit();
glAttribStatePtr->DisableCullFace();
}
static const void PushRenderStateS3O() {
glPrimitiveRestartIndex(-1U);
}
static const void PushRenderStateASS() { /* no-op */ }
static const void PopRenderState3DO() { glAttribStatePtr->PopBits(); }
static const void PopRenderStateS3O() { /* no-op */ }
static const void PopRenderStateASS() { /* no-op */ }
static const void SetTeamColorDummy(const IUnitDrawerState* state, int team, const float2 alpha) {}
static const void SetTeamColorValid(const IUnitDrawerState* state, int team, const float2 alpha) { state->SetTeamColor(team, alpha); }
// typedef std::function<void(int)> BindTexFunc;
// typedef std::function<void(const CS3OTextureHandler::S3OTexMat*)> BindTexFunc;
// typedef std::function<void()> KillTexFunc;
typedef const void (*BindTexFunc)(const CS3OTextureHandler::S3OTexMat*);
typedef const void (*BindTexFunc)(const CS3OTextureHandler::S3OTexMat*);
typedef const void (*KillTexFunc)(const CS3OTextureHandler::S3OTexMat*);
typedef const void (*PushRenderStateFunc)();
typedef const void (*PopRenderStateFunc)();
typedef const void (*SetTeamColorFunc)(const IUnitDrawerState*, int team, const float2 alpha);
static const BindTexFunc opaqueTexBindFuncs[MODELTYPE_OTHER] = {
BindOpaqueTexDummy, // 3DO (no-op, done by PushRenderState3DO)
BindOpaqueTex, // S3O
BindOpaqueTex, // ASS
};
static const BindTexFunc shadowTexBindFuncs[MODELTYPE_OTHER] = {
BindShadowTexAtlas, // 3DO
BindShadowTex, // S3O
BindShadowTex, // ASS
};
static const BindTexFunc* bindModelTexFuncs[] = {
&opaqueTexBindFuncs[0], // opaque+alpha
&shadowTexBindFuncs[0], // shadow
};
static const KillTexFunc shadowTexKillFuncs[MODELTYPE_OTHER] = {
KillShadowTexAtlas, // 3DO
KillShadowTex, // S3O
KillShadowTex, // ASS
};
static const PushRenderStateFunc renderStatePushFuncs[MODELTYPE_OTHER] = {
PushRenderState3DO,
PushRenderStateS3O,
PushRenderStateASS,
};
static const PopRenderStateFunc renderStatePopFuncs[MODELTYPE_OTHER] = {
PopRenderState3DO,
PopRenderStateS3O,
PopRenderStateASS,
};
static const SetTeamColorFunc setTeamColorFuncs[] = {
SetTeamColorDummy,
SetTeamColorValid,
};
// low-level (batch and solo)
// note: also called during SP
void CUnitDrawer::BindModelTypeTexture(int mdlType, int texType) {
const auto texFun = bindModelTexFuncs[shadowHandler.InShadowPass()][mdlType];
const auto texMat = textureHandlerS3O.GetTexture(texType);
texFun(texMat);
}
void CUnitDrawer::PushModelRenderState(int mdlType) { renderStatePushFuncs[mdlType](); }
void CUnitDrawer::PopModelRenderState (int mdlType) { renderStatePopFuncs [mdlType](); }
// mid-level (solo only)
void CUnitDrawer::PushModelRenderState(const S3DModel* m) {
PushModelRenderState(m->type);
BindModelTypeTexture(m->type, m->textureType);
}
void CUnitDrawer::PopModelRenderState(const S3DModel* m) {
PopModelRenderState(m->type);
}
// high-level (solo only)
void CUnitDrawer::PushModelRenderState(const CSolidObject* o) { PushModelRenderState(o->model); }
void CUnitDrawer::PopModelRenderState(const CSolidObject* o) { PopModelRenderState(o->model); }
void CUnitDrawer::InitStatic() {
if (unitDrawer == nullptr)
unitDrawer = new (unitDrawerMem) CUnitDrawer();
unitDrawer->Init();
}
void CUnitDrawer::KillStatic(bool reload) {
unitDrawer->Kill();
if (reload)
return;
spring::SafeDestruct(unitDrawer);
memset(unitDrawerMem, 0, sizeof(unitDrawerMem));
}
void CUnitDrawer::Init() {
eventHandler.AddClient(this);
LuaObjectDrawer::ReadLODScales(LUAOBJ_UNIT);
SetUnitDrawDist((float)configHandler->GetInt("UnitLodDist"));
SetUnitIconDist((float)configHandler->GetInt("UnitIconDist"));
alphaValues.x = std::max(0.11f, std::min(1.0f, 1.0f - configHandler->GetFloat("UnitTransparency")));
alphaValues.y = std::min(1.0f, alphaValues.x + 0.1f);
alphaValues.z = std::min(1.0f, alphaValues.x + 0.2f);
alphaValues.w = std::min(1.0f, alphaValues.x + 0.4f);
LoadUnitExplosionGenerators();
for (int modelType = MODELTYPE_3DO; modelType < MODELTYPE_OTHER; modelType++) {
opaqueModelRenderers[modelType].Init();
alphaModelRenderers[modelType].Init();
}
unitsByIcon.reserve(unitDefHandler->NumUnitDefs());
unitIcons.resize(unitHandler.MaxUnits(), nullptr);
unitDefImages.clear();
unitDefImages.resize(unitDefHandler->NumUnitDefs() + 1);
deadGhostBuildings.resize(teamHandler.ActiveAllyTeams());
liveGhostBuildings.resize(teamHandler.ActiveAllyTeams());
// LH must be initialized before drawer-state is initialized
lightHandler.Init(configHandler->GetInt("MaxDynamicModelLights"));
unitDrawerStates[DRAWER_STATE_NOP] = IUnitDrawerState::GetInstance( true, false);
unitDrawerStates[DRAWER_STATE_SSP] = IUnitDrawerState::GetInstance(false, false);
unitDrawerStates[DRAWER_STATE_LUA] = IUnitDrawerState::GetInstance(false, true);
drawModelFuncs[0] = &CUnitDrawer::DrawUnitModelBeingBuiltOpaque;
drawModelFuncs[1] = &CUnitDrawer::DrawUnitModelBeingBuiltShadow;
drawModelFuncs[2] = &CUnitDrawer::DrawUnitModel;
// shared with FeatureDrawer!
geomBuffer = LuaObjectDrawer::GetGeometryBuffer();
drawForward = true;
drawDeferred = (geomBuffer->Valid());
wireFrameMode = false;
unitDrawerStates[DRAWER_STATE_SSP]->Init(this);
cubeMapHandler.Init(); // can only fail if FBO's are invalid
// note: state must be pre-selected before the first drawn frame
// Sun*Changed can be called first, e.g. if DynamicSun is enabled
unitDrawerStates[DRAWER_STATE_SEL] = const_cast<IUnitDrawerState*>(GetWantedDrawerState(false));
}
void CUnitDrawer::Kill()
{
eventHandler.RemoveClient(this);
autoLinkedEvents.clear();
unitDrawerStates[DRAWER_STATE_NOP]->Kill(); IUnitDrawerState::FreeInstance(unitDrawerStates[DRAWER_STATE_NOP]);
unitDrawerStates[DRAWER_STATE_SSP]->Kill(); IUnitDrawerState::FreeInstance(unitDrawerStates[DRAWER_STATE_SSP]);
unitDrawerStates[DRAWER_STATE_LUA]->Kill(); IUnitDrawerState::FreeInstance(unitDrawerStates[DRAWER_STATE_LUA]);
cubeMapHandler.Free();
for (CUnit* u: unsortedUnits) {
groundDecals->ForceRemoveSolidObject(u);
}
for (UnitDefImage& img: unitDefImages) {
img.Free();
}
for (int allyTeam = 0; allyTeam < deadGhostBuildings.size(); ++allyTeam) {
for (int modelType = MODELTYPE_3DO; modelType < MODELTYPE_OTHER; modelType++) {
auto& lgb = liveGhostBuildings[allyTeam][modelType];
auto& dgb = deadGhostBuildings[allyTeam][modelType];
for (GhostSolidObject* gso : dgb) {
if (gso->DecRef())
continue;
// <ghost> might be the gbOwner of a decal; groundDecals is deleted after us
groundDecals->GhostDestroyed(gso);
ghostMemPool.free(gso);
}
dgb.clear();
lgb.clear();
}
}
// reuse inner vectors when reloading
// deadGhostBuildings.clear();
// liveGhostBuildings.clear();
for (int modelType = MODELTYPE_3DO; modelType < MODELTYPE_OTHER; modelType++) {
opaqueModelRenderers[modelType].Kill();
alphaModelRenderers[modelType].Kill();
}
unsortedUnits.clear();
unitsByIcon.clear();
unitIcons.clear();
geomBuffer = nullptr;
}
void CUnitDrawer::SetUnitDrawDist(float dist)
{
unitDrawDist = dist;
unitDrawDistSqr = dist * dist;
}
void CUnitDrawer::SetUnitIconDist(float dist)
{
unitIconDist = dist;
iconLength = 750.0f * unitIconDist * unitIconDist;
}
void CUnitDrawer::Update()
{
for (int modelType = MODELTYPE_3DO; modelType < MODELTYPE_OTHER; modelType++) {
UpdateTempDrawUnits(tempOpaqueUnits[modelType]);
UpdateTempDrawUnits(tempAlphaUnits[modelType]);
}
{
for (CUnit* unit: unsortedUnits) {
UpdateUnitIconState(unit);
UpdateUnitDrawPos(unit);
}
}
if ((useDistToGroundForIcons = (camHandler->GetCurrentController()).GetUseDistToGroundForIcons())) {
const float3& camPos = camera->GetPos();
// use the height at the current camera position
//const float groundHeight = CGround::GetHeightAboveWater(camPos.x, camPos.z, false);
// use the middle between the highest and lowest position on the map as average
const float groundHeight = readMap->GetCurrAvgHeight();
const float overGround = camPos.y - groundHeight;
sqCamDistToGroundForIcons = overGround * overGround;
}
}
void CUnitDrawer::Draw()
{
assert((CCameraHandler::GetActiveCamera())->GetCamType() != CCamera::CAMTYPE_SHADOW);
// first do the deferred pass; conditional because
// most of the water renderers use their own FBO's
if (drawDeferred && !water->DrawReflectionPass() && !water->DrawRefractionPass())
LuaObjectDrawer::DrawDeferredPass(LUAOBJ_UNIT);
// now do the regular forward pass
if (drawForward)
DrawOpaquePass(false);
farTextureHandler->Draw();
glAttribStatePtr->DisableAlphaTest();
}
void CUnitDrawer::DrawOpaquePass(bool deferredPass)
{
SetupOpaqueDrawing(deferredPass);
// cubemap reflections do not include units
const bool inWaterReflPass = water->DrawReflectionPass();
const bool inWaterRefrPass = water->DrawRefractionPass();
if (inWaterReflPass)
unitDrawerStates[DRAWER_STATE_SEL]->SetWaterClipPlane(DrawPass::WaterReflection);
if (inWaterRefrPass)
unitDrawerStates[DRAWER_STATE_SEL]->SetWaterClipPlane(DrawPass::WaterRefraction);
for (int modelType = MODELTYPE_3DO; modelType < MODELTYPE_OTHER; modelType++) {
PushModelRenderState(modelType);
DrawOpaqueUnits(modelType, inWaterReflPass, inWaterRefrPass);
DrawOpaqueAIUnits(modelType);
PopModelRenderState(modelType);
}
ResetOpaqueDrawing(deferredPass);
// draw all custom'ed units that were bypassed in the loop above
LuaObjectDrawer::SetDrawPassGlobalLODFactor(LUAOBJ_UNIT);
LuaObjectDrawer::DrawOpaqueMaterialObjects(LUAOBJ_UNIT, deferredPass);
}
void CUnitDrawer::DrawOpaqueUnits(int modelType, bool drawReflection, bool drawRefraction)
{
const auto& mdlRenderer = opaqueModelRenderers[modelType];
// const auto& unitBinKeys = mdlRenderer.GetObjectBinKeys();
for (unsigned int i = 0, n = mdlRenderer.GetNumObjectBins(); i < n; i++) {
BindModelTypeTexture(modelType, mdlRenderer.GetObjectBinKey(i));
for (CUnit* unit: mdlRenderer.GetObjectBin(i)) {
DrawOpaqueUnit(unit, drawReflection, drawRefraction);
}
}
}
inline void CUnitDrawer::DrawOpaqueUnit(CUnit* unit, bool drawReflection, bool drawRefraction)
{
if (!CanDrawOpaqueUnit(unit, drawReflection, drawRefraction))
return;
if ((unit->pos).SqDistance(camera->GetPos()) > (unit->sqRadius * unitDrawDistSqr)) {
farTextureHandler->Queue(unit);
return;
}
if (LuaObjectDrawer::AddOpaqueMaterialObject(unit, LUAOBJ_UNIT))
return;
// draw the unit with the default (non-Lua) material
SetTeamColour(unit->team);
DrawUnitDefTrans(unit, false, false);
}
void CUnitDrawer::DrawOpaqueAIUnits(int modelType)
{
const std::vector<TempDrawUnit>& tmpOpaqueUnits = tempOpaqueUnits[modelType];
// NOTE: not type-sorted
for (const TempDrawUnit& unit: tmpOpaqueUnits) {
if (!camera->InView(unit.pos, 100.0f))
continue;
DrawOpaqueAIUnit(unit);
}
}
void CUnitDrawer::DrawOpaqueAIUnit(const TempDrawUnit& unit)
{
CMatrix44f mat;
mat.Translate(unit.pos);
mat.RotateY(unit.rotation);
const IUnitDrawerState* state = GetDrawerState(DRAWER_STATE_SEL);
const UnitDef* def = unit.unitDef;
const S3DModel* mdl = def->model;
assert(mdl != nullptr);
BindModelTypeTexture(mdl->type, mdl->textureType);
SetTeamColour(unit.team);
state->SetMatrices(mat, mdl->GetPieceMatrices());
mdl->Draw();
}
void CUnitDrawer::DrawUnitIcons()
{
// draw unit icons and radar blips
glAttribStatePtr->PushBits(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glAttribStatePtr->DisableDepthTest();
glAttribStatePtr->DisableBlendMask();
glAttribStatePtr->EnableAlphaTest();
glAttribStatePtr->AlphaFunc(GL_GREATER, 0.05f);
// A2C effectiveness is limited below four samples
if (globalRendering->msaaLevel >= 4)
glEnable(GL_SAMPLE_ALPHA_TO_COVERAGE);
GL::RenderDataBufferTC* buffer = GL::GetRenderBufferTC();
Shader::IProgramObject* shader = buffer->GetShader();
shader->Enable();
shader->SetUniformMatrix4x4<const char*, float>("u_movi_mat", false, camera->GetViewMatrix());
shader->SetUniformMatrix4x4<const char*, float>("u_proj_mat", false, camera->GetProjectionMatrix());
for (const auto& p: unitsByIcon) {
const icon::CIconData* icon = p.first;
const std::vector<const CUnit*>& units = p.second;
if (icon == nullptr)
continue;
if (units.empty())
continue;
icon->BindTexture();
for (const CUnit* unit: units) {
assert(unitIcons[unit->id] == icon);
// unitsByIcon is unfiltered, also used for drawing on minimap
if (!unit->isIcon)
continue;
const unsigned short closBits = (unit->losStatus[gu->myAllyTeam] & (LOS_INLOS ));
const unsigned short plosBits = (unit->losStatus[gu->myAllyTeam] & (LOS_PREVLOS | LOS_CONTRADAR));
DrawUnitIcon(const_cast<CUnit*>(unit), buffer, !gu->spectatingFullView && closBits == 0 && plosBits != (LOS_PREVLOS | LOS_CONTRADAR));
}
buffer->Submit(GL_QUADS);
}
if (globalRendering->msaaLevel >= 4)
glDisable(GL_SAMPLE_ALPHA_TO_COVERAGE);
shader->Disable();
glAttribStatePtr->PopBits();
}
/******************************************************************************/
/******************************************************************************/
bool CUnitDrawer::CanDrawOpaqueUnit(
const CUnit* unit,
bool drawReflection,
bool drawRefraction
) const {
if (unit == (drawReflection? nullptr: (gu->GetMyPlayer())->fpsController.GetControllee()))
return false;
if (unit->noDraw)
return false;
if (unit->IsInVoid())
return false;
// unit will be drawn as icon instead
if (unit->isIcon)
return false;
if (!(unit->losStatus[gu->myAllyTeam] & LOS_INLOS) && !gu->spectatingFullView)
return false;
// either PLAYER or UWREFL
const CCamera* cam = CCameraHandler::GetActiveCamera();
if (drawRefraction && !unit->IsInWater())
return false;
if (drawReflection && !ObjectVisibleReflection(unit->drawMidPos, cam->GetPos(), unit->GetDrawRadius()))
return false;
return (cam->InView(unit->drawMidPos, unit->GetDrawRadius()));
}
bool CUnitDrawer::CanDrawOpaqueUnitShadow(const CUnit* unit) const
{
if (unit->noDraw)
return false;
if (unit->IsInVoid())
return false;
// no shadow if unit is already an icon from player's POV
if (unit->isIcon)
return false;
if (unit->isCloaked)
return false;
const CCamera* cam = CCameraHandler::GetActiveCamera();
const bool unitInLOS = ((unit->losStatus[gu->myAllyTeam] & LOS_INLOS) || gu->spectatingFullView);
const bool unitInView = cam->InView(unit->drawMidPos, unit->GetDrawRadius());
return (unitInLOS && unitInView);
}
void CUnitDrawer::DrawOpaqueUnitShadow(CUnit* unit) {
if (!CanDrawOpaqueUnitShadow(unit))
return;
if (LuaObjectDrawer::AddShadowMaterialObject(unit, LUAOBJ_UNIT))
return;
DrawUnitDefTrans(unit, false, false);
}
void CUnitDrawer::DrawOpaqueUnitsShadow(int modelType) {
const auto& mdlRenderer = opaqueModelRenderers[modelType];
// const auto& unitBinKeys = mdlRenderer.GetObjectBinKeys();
for (unsigned int i = 0, n = mdlRenderer.GetNumObjectBins(); i < n; i++) {
// only need to bind the atlas once for 3DO's, but KISS
assert((modelType != MODELTYPE_3DO) || (mdlRenderer.GetObjectBinKey(i) == 0));
shadowTexBindFuncs[modelType](textureHandlerS3O.GetTexture(mdlRenderer.GetObjectBinKey(i)));
for (CUnit* unit: mdlRenderer.GetObjectBin(i)) {
DrawOpaqueUnitShadow(unit);
}
shadowTexKillFuncs[modelType](nullptr);
}
}
void CUnitDrawer::DrawShadowPass()
{
glAttribStatePtr->PolygonOffset(1.0f, 1.0f);
glAttribStatePtr->PolygonOffsetFill(GL_TRUE);
glAttribStatePtr->EnableAlphaTest();
glAttribStatePtr->AlphaFunc(GL_GREATER, 0.5f);
Shader::IProgramObject* po = shadowHandler.GetShadowGenProg(CShadowHandler::SHADOWGEN_PROGRAM_MODEL);
po->Enable();
// TODO: shared by {AdvTree,SMFGround,Unit,Feature,Projectile,LuaObject}Drawer, move to ShadowHandler
po->SetUniformMatrix4fv(1, false, shadowHandler.GetShadowViewMatrix());
po->SetUniformMatrix4fv(2, false, shadowHandler.GetShadowProjMatrix());
{
assert((CCameraHandler::GetActiveCamera())->GetCamType() == CCamera::CAMTYPE_SHADOW);
// 3DO's have clockwise-wound faces and
// (usually) holes, so disable backface
// culling for them
glAttribStatePtr->DisableCullFace();
DrawOpaqueUnitsShadow(MODELTYPE_3DO);
glAttribStatePtr->EnableCullFace();
for (int modelType = MODELTYPE_S3O; modelType < MODELTYPE_OTHER; modelType++) {
// note: just use DrawOpaqueUnits()? would
// save texture switches needed anyway for
// alpha-masking
DrawOpaqueUnitsShadow(modelType);
}
}
po->Disable();
glAttribStatePtr->DisableAlphaTest();
glAttribStatePtr->PolygonOffsetFill(GL_FALSE);
LuaObjectDrawer::SetDrawPassGlobalLODFactor(LUAOBJ_UNIT);
LuaObjectDrawer::DrawShadowMaterialObjects(LUAOBJ_UNIT, false);
}
void CUnitDrawer::DrawUnitIcon(CUnit* unit, GL::RenderDataBufferTC* buffer, bool useDefaultIcon)
{
// should never draw icons for void-space units, see UpdateUnitIconState
assert(!unit->IsInVoid());
// If the icon is to be drawn as a radar blip, we want to get the default icon.
const icon::CIconData* iconData = nullptr;
if (useDefaultIcon) {
iconData = icon::iconHandler.GetDefaultIconData();
} else {
iconData = unit->unitDef->iconType.GetIconData();
}
// drawMidPos is auto-calculated now; can wobble on its own as pieces move
float3 pos = (!gu->spectatingFullView) ?
unit->GetObjDrawErrorPos(gu->myAllyTeam) :
unit->GetObjDrawMidPos();
{
// calculate icon size, which scales with:
// * square root of distance to camera
// * mod-defined 'iconSize' (acts as a multiplier)
// * unit radius (if mod-defined 'radiusAdjust' is enabled)
const float iconDist = std::min(8000.0f, fastmath::sqrt_builtin(pos.SqDistance(camera->GetPos())));
const float sizeMult = 0.4f * fastmath::sqrt_builtin(iconDist); // makes far icons bigger
const float scaledSize = iconData->GetSize() * sizeMult;
const float radiusMult = mix(1.0f, unit->radius / iconData->GetRadiusScale(), (iconData->GetRadiusAdjust() && !useDefaultIcon));
// make sure icon is not partly underground, also store its size
pos.y = std::max(pos.y, CGround::GetHeightReal(pos.x, pos.z, false) + (unit->iconRadius = scaledSize * radiusMult));
}
// use white for selected units
const uint8_t* colors[] = {teamHandler.Team(unit->team)->color, color4::white};
const uint8_t* color = colors[unit->isSelected];
// calculate the vertices
const float3 dy = camera->GetUp() * unit->iconRadius;
const float3 dx = camera->GetRight() * unit->iconRadius;
const float3 vn = pos - dx;
const float3 vp = pos + dx;
const float3 vnn = vn - dy; // bottom-left
const float3 vpn = vp - dy; // bottom-right
const float3 vnp = vn + dy; // top-right
const float3 vpp = vp + dy; // top-left
buffer->SafeAppend({vnn, 0.0f, 1.0f, color});
buffer->SafeAppend({vpn, 1.0f, 1.0f, color});
buffer->SafeAppend({vpp, 1.0f, 0.0f, color});
buffer->SafeAppend({vnp, 0.0f, 0.0f, color});
}
void CUnitDrawer::SetupAlphaDrawing(bool deferredPass, bool aboveWater)
{
unitDrawerStates[DRAWER_STATE_SEL] = const_cast<IUnitDrawerState*>(GetWantedDrawerState(true));
unitDrawerStates[DRAWER_STATE_SEL]->Enable(this, /*deferredPass*/ false, true);
glAttribStatePtr->PushBits(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_POLYGON_BIT);
glAttribStatePtr->PolygonMode(GL_FRONT_AND_BACK, GL_LINE * wireFrameMode + GL_FILL * (1 - wireFrameMode));
glAttribStatePtr->EnableBlendMask();
glAttribStatePtr->BlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glAttribStatePtr->EnableAlphaTest();
glAttribStatePtr->AlphaFunc(GL_GREATER, 0.1f);
glAttribStatePtr->DisableDepthMask();
if (water->DrawReflectionPass() || water->DrawRefractionPass()) {
// IWater enables GL_CLIP_DISTANCE{0,1}
assert(water->DrawReflectionPass() == aboveWater);
unitDrawerStates[DRAWER_STATE_SEL]->SetWaterClipPlane(water->DrawReflectionPass()? DrawPass::WaterReflection: DrawPass::WaterRefraction);
} else {
// (ab)use drawpass to select the proper plane; WorldDrawer enables GL_CLIP_DISTANCE*
unitDrawerStates[DRAWER_STATE_SEL]->SetWaterClipPlane(aboveWater? DrawPass::WaterReflection: DrawPass::WaterRefraction);
}
}
void CUnitDrawer::ResetAlphaDrawing(bool deferredPass)
{
unitDrawerStates[DRAWER_STATE_SEL]->Disable(this, /*deferredPass*/ false);
glAttribStatePtr->PopBits();
}
void CUnitDrawer::DrawAlphaPass(bool aboveWater)
{
{
SetupAlphaDrawing(false, aboveWater);
glAttribStatePtr->DisableAlphaTest();
for (int modelType = MODELTYPE_3DO; modelType < MODELTYPE_OTHER; modelType++) {
PushModelRenderState(modelType);
DrawAlphaUnits(modelType);
DrawAlphaAIUnits(modelType);
PopModelRenderState(modelType);
}
glAttribStatePtr->EnableAlphaTest();
ResetAlphaDrawing(false);
}
LuaObjectDrawer::SetDrawPassGlobalLODFactor(LUAOBJ_UNIT);
LuaObjectDrawer::DrawAlphaMaterialObjects(LUAOBJ_UNIT, false);
}
void CUnitDrawer::DrawAlphaUnits(int modelType)
{
{
const auto& mdlRenderer = alphaModelRenderers[modelType];
// const auto& unitBinKeys = mdlRenderer.GetObjectBinKeys();
for (unsigned int i = 0, n = mdlRenderer.GetNumObjectBins(); i < n; i++) {
BindModelTypeTexture(modelType, mdlRenderer.GetObjectBinKey(i));
for (CUnit* unit: mdlRenderer.GetObjectBin(i)) {
DrawAlphaUnit(unit, modelType, false);
}
}
}
// living and dead ghosted buildings
if (!gu->spectatingFullView)
DrawGhostedBuildings(modelType);
}
inline void CUnitDrawer::DrawAlphaUnit(CUnit* unit, int modelType, bool drawGhostBuildingsPass) {
if (!camera->InView(unit->drawMidPos, unit->GetDrawRadius()))
return;
if (LuaObjectDrawer::AddAlphaMaterialObject(unit, LUAOBJ_UNIT))
return;
const unsigned short losStatus = unit->losStatus[gu->myAllyTeam];
if (drawGhostBuildingsPass) {
const IUnitDrawerState* state = GetDrawerState(DRAWER_STATE_SEL);
// check for decoy models
const UnitDef* decoyDef = unit->unitDef->decoyDef;
const S3DModel* model = nullptr;
if (decoyDef == nullptr) {
model = unit->model;
} else {
model = decoyDef->LoadModel();
}
// FIXME: needs a second pass
if (model->type != modelType)
return;
CMatrix44f mat;
mat.Translate(unit->drawPos);
mat.RotateY(unit->buildFacing * 90.0f * math::DEG_TO_RAD);
// the units in liveGhostedBuildings[modelType] are not
// sorted by textureType, but we cannot merge them with
// alphaModelRenderers[modelType] either since they are
// not actually cloaked
BindModelTypeTexture(modelType, model->textureType);
// SetAlphaMasks(unit->team, (losStatus & LOS_CONTRADAR)? {0.9f, 0.9f, 0.9f}: {0.6f, 0.6f, 0.6f});
SetTeamColour(unit->team, float2((losStatus & LOS_CONTRADAR)? alphaValues.z: alphaValues.y, 1.0f));
state->SetMatrices(mat, model->GetPieceMatrices());
model->Draw();
return;
}
if (unit->isIcon)
return;
if ((losStatus & LOS_INLOS) || gu->spectatingFullView) {
SetTeamColour(unit->team, float2(alphaValues.x, 1.0f));
DrawUnitDefTrans(unit, false, false);
}
}
void CUnitDrawer::DrawAlphaAIUnits(int modelType)
{
const std::vector<TempDrawUnit>& tmpAlphaUnits = tempAlphaUnits[modelType];
// NOTE: not type-sorted
for (const TempDrawUnit& unit: tmpAlphaUnits) {
if (!camera->InView(unit.pos, 100.0f))
continue;
DrawAlphaAIUnit(unit);
}
}
void CUnitDrawer::DrawAlphaAIUnit(const TempDrawUnit& unit)
{
CMatrix44f mat;
mat.Translate(unit.pos);
mat.RotateY(unit.rotation);
const IUnitDrawerState* state = GetDrawerState(DRAWER_STATE_SEL);
const UnitDef* def = unit.unitDef;
const S3DModel* mdl = def->model;
assert(mdl != nullptr);
BindModelTypeTexture(mdl->type, mdl->textureType);
SetTeamColour(unit.team, float2(alphaValues.x, 1.0f));
state->SetMatrices(mat, mdl->GetPieceMatrices());
mdl->Draw();
}
void CUnitDrawer::UpdateGhostedBuildings()
{
for (int allyTeam = 0; allyTeam < deadGhostBuildings.size(); ++allyTeam) {
for (int modelType = MODELTYPE_3DO; modelType < MODELTYPE_OTHER; modelType++) {
auto& dgb = deadGhostBuildings[allyTeam][modelType];
for (size_t i = 0; i < dgb.size(); /*no-op*/) {
GhostSolidObject* gso = dgb[i];
if (!losHandler->InLos(gso->pos, allyTeam)) {
++i;
continue;
}
// obtained LOS on the ghost of a dead building
if (!gso->DecRef()) {
groundDecals->GhostDestroyed(gso);
ghostMemPool.free(gso);
}
dgb[i] = dgb.back();
dgb.pop_back();
}
}
}
}
void CUnitDrawer::DrawGhostedBuildings(int modelType)
{
assert((unsigned) gu->myAllyTeam < deadGhostBuildings.size());
std::vector<GhostSolidObject*>& deadGhostedBuildings = deadGhostBuildings[gu->myAllyTeam][modelType];
std::vector<CUnit*>& liveGhostedBuildings = liveGhostBuildings[gu->myAllyTeam][modelType];
const IUnitDrawerState* state = GetDrawerState(DRAWER_STATE_SEL);
// buildings that died while ghosted
for (GhostSolidObject* gso: deadGhostedBuildings) {
const S3DModel* model = gso->model;
if (!camera->InView(gso->pos, model->GetDrawRadius()))
continue;
CMatrix44f mat;
mat.Translate(gso->pos);
mat.RotateY(gso->facing * 90.0f * math::DEG_TO_RAD);
BindModelTypeTexture(modelType, gso->model->textureType);
// SetAlphaMasks(gso->team, {0.6f, 0.6f, 0.6f});
SetTeamColour(gso->team, float2(alphaValues.y, 1.0f));
state->SetMatrices(mat, model->GetPieceMatrices());
model->Draw();
gso->lastDrawFrame = globalRendering->drawFrame;
}
for (CUnit* u: liveGhostedBuildings) {
DrawAlphaUnit(u, modelType, true);
}
}
void CUnitDrawer::SetupOpaqueDrawing(bool deferredPass)
{
glAttribStatePtr->PushBits(GL_ENABLE_BIT | GL_POLYGON_BIT);